Beispiel #1
0
class Showcase:
    """ Our main application object.
    """
    def onModuleLoad(self):
        """ Dynamically build our user interface when the web page is loaded.
        """
        self._root        = RootPanel()
        self._tree        = Tree()
        self._rightPanel  = SimplePanel()
        self._curContents = None

        intro = HTML('<h3>Welcome to the Pyjamas User Interface Showcase</h3>'+
                     '<p/>Please click on an item to start.')

        self._introPanel = VerticalPanel()
        self._introPanel.add(uiHelpers.indent(intro, left=20))

        self._demos = [] # List of all installed demos.  Each item in this list
                         # is a dictionary with the following entries:
                         #
                         #     'name'
                         #
                         #         The name for this demo.
                         #
                         #     'section'
                         #
                         #         The name of the section of the demo tree
                         #         this demo should be part of.
                         #
                         #     'doc'
                         #
                         #         The documentation for this demo.
                         #
                         #     'src'
                         #
                         #         The source code for this demo.
                         #
                         #     'example'
                         #
                         #         The Panel which holds the example output for
                         #         this demo.

        self.loadDemos()
        self.buildTree()

        self._tree.setSize("0%", "100%")

        divider = VerticalPanel()
        divider.setSize("1px", "100%")
        divider.setBorderWidth(1)

        scroller = ScrollPanel(self._rightPanel)
        scroller.setSize("100%", "100%")

        hPanel = HorizontalPanel()
        hPanel.setSpacing(4)

        hPanel.add(self._tree)
        hPanel.add(divider)
        hPanel.add(scroller)

        hPanel.setHeight("100%")
        self._root.add(hPanel)

        self._tree.addTreeListener(self)
        self.showDemo(None)


    def loadDemos(self):
        """ Load our various demos, in preparation for showing them.

            We insert the demos into self._demos.
        """
        self._demos = demoInfo.getDemos()


    def buildTree(self):
        """ Build the contents of our tree.

            Note that, for now, we highlight the demos which haven't been
            written yet.
        """
        sections = {} # Maps section name to TreeItem object.

        for demo in self._demos:
            if demo['section'] not in sections:
                section = TreeItem('<b>' + demo['section'] + '</b>')
                DOM.setStyleAttribute(section.getElement(),
                                      "cursor", "pointer")
                DOM.setAttribute(section.itemTable, "cellPadding", "0")
                DOM.setAttribute(section.itemTable, "cellSpacing", "1")
                self._tree.addItem(section)
                sections[demo['section']] = section

            section = sections[demo['section']]

            if demo['doc'][:26] == "Documentation goes here...":
                item = TreeItem('<font style="color:#808080">' +
                                demo['title'] + '</font>')
            else:
                item = TreeItem(demo['title'])
            DOM.setStyleAttribute(item.getElement(), "cursor", "pointer")
            DOM.setAttribute(item.itemTable, "cellPadding", "0")
            DOM.setAttribute(item.itemTable, "cellSpacing", "1")
            item.setUserObject(demo)
            section.addItem(item)

        # Open the branches of the tree.

        for section in sections.keys():
            sections[section].setState(True, fireEvents=False)


    def onTreeItemSelected(self, item):
        """ Respond to the user selecting an item in our tree.
        """
        demo = item.getUserObject()
        if demo is None:
            self.showDemo(None)
        else:
            self.showDemo(demo['name'])


    def onTreeItemStateChanged(self, item):
        """ Respond to the user opening or closing a branch of the tree.
        """
        pass # Nothing to do.


    def showDemo(self, name):
        """ Show the demonstration with the given name.
        """
        if self._curContents is not None:
            self._rightPanel.remove(self._curContents)
            self._curContents = None

        demo = None
        for d in self._demos:
            if d['name'] == name:
                demo = d
                break

        if demo is not None:
            exampleID = HTMLPanel.createUniqueId()

            html = []
            html.append('<div style="padding:20px">')
            html.append('<b>' + demo['title'] + '</b>')
            html.append('<p/>')
            html.append(self.docToHTML(demo['doc']))
            html.append('<p/>')
            html.append('<hr/>')
            html.append('<b>Working Example</b>')
            html.append('<p/>')
            html.append('<div style="padding-left:20px">')
            html.append('<span id="' + exampleID + '"></span>')
            html.append('</div>')
            html.append('<p/>')
            html.append('<hr/>')
            html.append('<b>Source Code</b>')
            html.append('<p/>')
            html.append(self.srcToHTML(demo['src']))
            html.append('</div>')

            panel = HTMLPanel("\n".join(html))
            panel.add(demo['example'], exampleID)

            self._rightPanel.add(panel)
            self._curContents = panel
        else:
            self._rightPanel.add(self._introPanel)
            self._curContents = self._introPanel


    def docToHTML(self, doc):
        """ Convert the given documentation string to HTML.
        """
        doc = doc.replace('\n\n', '<p/>')

        isBold = False
        while True:
            i = doc.find("``")
            if i == -1: break
            if isBold:
                doc = doc[:i] + '</b></font>' + doc[i+2:]
            else:
                doc = doc[:i] + '<font face="monospace"><b>' + doc[i+2:]
            isBold = not isBold

        return doc


    def srcToHTML(self, src):
        """ Convert the given source code to HTML.

            The source code is already in HTML format, but has extra tags to
            make it a complete HTML file.  We extract and return just the text
            between the <body> tags.
        """
        i = src.find('<body')
        i = src.find('>', i)
        j = src.find('</body>')
        return src[i+1:j]
Beispiel #2
0
class Showcase:
    """ Our main application object.
    """
    def onModuleLoad(self):
        """ Dynamically build our user interface when the web page is loaded.
        """
        self._root = RootPanel()
        self._tree = Tree()
        self._rightPanel = SimplePanel()
        self._curContents = None

        intro = HTML(
            '<h3>Welcome to the Pyjamas User Interface Showcase</h3>' +
            '<p/>Please click on an item to start.')

        self._introPanel = VerticalPanel()
        self._introPanel.add(uiHelpers.indent(intro, left=20))

        self._demos = [
        ]  # List of all installed demos.  Each item in this list
        # is a dictionary with the following entries:
        #
        #     'name'
        #
        #         The name for this demo.
        #
        #     'section'
        #
        #         The name of the section of the demo tree
        #         this demo should be part of.
        #
        #     'doc'
        #
        #         The documentation for this demo.
        #
        #     'src'
        #
        #         The source code for this demo.
        #
        #     'example'
        #
        #         The Panel which holds the example output for
        #         this demo.

        self.loadDemos()
        self.buildTree()

        self._tree.setSize("0%", "100%")

        divider = VerticalPanel()
        divider.setSize("1px", "100%")
        divider.setBorderWidth(1)

        scroller = ScrollPanel(self._rightPanel)
        scroller.setSize("100%", "100%")

        hPanel = HorizontalPanel()
        hPanel.setSpacing(4)

        hPanel.add(self._tree)
        hPanel.add(divider)
        hPanel.add(scroller)

        hPanel.setHeight("100%")
        self._root.add(hPanel)

        self._tree.addTreeListener(self)
        self.showDemo(None)

    def loadDemos(self):
        """ Load our various demos, in preparation for showing them.

            We insert the demos into self._demos.
        """
        self._demos = demoInfo.getDemos()

    def buildTree(self):
        """ Build the contents of our tree.

            Note that, for now, we highlight the demos which haven't been
            written yet.
        """
        sections = {}  # Maps section name to TreeItem object.

        for demo in self._demos:
            if demo['section'] not in sections:
                section = TreeItem('<b>' + demo['section'] + '</b>')
                DOM.setStyleAttribute(section.getElement(), "cursor",
                                      "pointer")
                DOM.setAttribute(section.itemTable, "cellPadding", "0")
                DOM.setAttribute(section.itemTable, "cellSpacing", "1")
                self._tree.addItem(section)
                sections[demo['section']] = section

            section = sections[demo['section']]

            if demo['doc'][:26] == "Documentation goes here...":
                item = TreeItem('<font style="color:#808080">' +
                                demo['title'] + '</font>')
            else:
                item = TreeItem(demo['title'])
            DOM.setStyleAttribute(item.getElement(), "cursor", "pointer")
            DOM.setAttribute(item.itemTable, "cellPadding", "0")
            DOM.setAttribute(item.itemTable, "cellSpacing", "1")
            item.setUserObject(demo)
            section.addItem(item)

        # Open the branches of the tree.

        for section in sections.keys():
            sections[section].setState(True, fireEvents=False)

    def onTreeItemSelected(self, item):
        """ Respond to the user selecting an item in our tree.
        """
        demo = item.getUserObject()
        if demo is None:
            self.showDemo(None)
        else:
            self.showDemo(demo['name'])

    def onTreeItemStateChanged(self, item):
        """ Respond to the user opening or closing a branch of the tree.
        """
        pass  # Nothing to do.

    def showDemo(self, name):
        """ Show the demonstration with the given name.
        """
        if self._curContents is not None:
            self._rightPanel.remove(self._curContents)
            self._curContents = None

        demo = None
        for d in self._demos:
            if d['name'] == name:
                demo = d
                break

        if demo is not None:
            exampleID = HTMLPanel.createUniqueId()

            html = []
            html.append('<div style="padding:20px">')
            html.append('<b>' + demo['title'] + '</b>')
            html.append('<p/>')
            html.append(self.docToHTML(demo['doc']))
            html.append('<p/>')
            html.append('<hr/>')
            html.append('<b>Working Example</b>')
            html.append('<p/>')
            html.append('<div style="padding-left:20px">')
            html.append('<span id="' + exampleID + '"></span>')
            html.append('</div>')
            html.append('<p/>')
            html.append('<hr/>')
            html.append('<b>Source Code</b>')
            html.append('<p/>')
            html.append(self.srcToHTML(demo['src']))
            html.append('</div>')

            panel = HTMLPanel("\n".join(html))
            panel.add(demo['example'], exampleID)

            self._rightPanel.add(panel)
            self._curContents = panel
        else:
            self._rightPanel.add(self._introPanel)
            self._curContents = self._introPanel

    def docToHTML(self, doc):
        """ Convert the given documentation string to HTML.
        """
        doc = doc.replace('\n\n', '<p/>')

        isBold = False
        while True:
            i = doc.find("``")
            if i == -1: break
            if isBold:
                doc = doc[:i] + '</b></font>' + doc[i + 2:]
            else:
                doc = doc[:i] + '<font face="monospace"><b>' + doc[i + 2:]
            isBold = not isBold

        return doc

    def srcToHTML(self, src):
        """ Convert the given source code to HTML.

            The source code is already in HTML format, but has extra tags to
            make it a complete HTML file.  We extract and return just the text
            between the <body> tags.
        """
        i = src.find('<body')
        i = src.find('>', i)
        j = src.find('</body>')
        return src[i + 1:j]